Here in Dairy Land there are a lot of silage tubes and hills covered with a black inside and white outside heavy plastic Ag Wrap .. tough as nails .. for free if you ask .. and blowing in the wind if you don't.
I use them to cover my wood and if big enough to cover a "odds and ends" hay stack. But I got to thinking about making a bed roll using it as an outside wrap .. strong, free, and light weight. I got some sixty inch charcoal colored blizzard cloth at Jo Ann's eight feet long for $22 and I'm testing it to make a bed roll with. I can get some foam for a mattress pretty cheap .. who knows .. some day it could come in handy.
The bed roll part would be about four by eight feet. I will cut the Agri Wrap 16 feet long and ten wide plus some extra length to the 16 to fold back to make a shelter tarp for snow, wind or rain.
If you get too far from the stone age .. things go haywire.
Some ultra-light backpacking enthusiasts use bubble wrap as a bed roll.
"the qualities of these bacteria, like the heat of the sun, electricity, or the qualities of metals, are part of the storehouse of knowledge of all men. They are manifestations of the laws of nature, free to all men and reserved exclusively to none." SCOTUS, Funk Bros. Seed Co. v. Kale Inoculant Co.
Diego Footer on Permaculture Based Homesteads - from the Eat Your Dirt Summit